System Startup, Configuration, and Shutdown Reference Manual (32650-90907)

Glossary
automatic restart
Glossary
235
Glossary
abort A procedure that terminates a program or
session if an irrecoverable error, mistake, or
malfunction occurs.
access The process of obtaining data from files or
acquiring the use of a device. Access implies an
input/output (I/O) operation, and is used as a
synonym for I/O.
access port (AP) The port located in the channel
I/O (CIO) section of the system card cage that
provides a user support interface for issuing hard
and soft resets through software commands from the
console. It allows a remote console to be enabled and
to switch between console and session modes.
account A collection of users and groups. Each
account has a unique name on the system. It is the
method used to organize a system’s users and files
and to allocate use of system resources such as
central processor time, online connect time, and file
space. Accounts are the principal billing entity for
the use of these resources. Every user must specify
an account to access the system.
account level security The types of file access
assigned by the system manager to the account
when it is created. The types of access are READ,
LOCK, APPEND, WRITE, and EXECUTE,
abbreviated R, L, A, W, and X respectively. They may
be assigned to any user (ANY), members of the
account only (AC), or members of the group only
(GU). The types of file access permitted are the first
level of system security. The account manager may
further restrict groups and users within an account
by assigning them a limited set of file access modes.
account librarian capability (AL capability) A
capability assigned by the account manager to a user
within the account. An account librarian is allowed
special file access modes to maintain specified files
within the account.
account manager capability (AM capability) A
capability assigned by the system manager to one
user within each account who is then responsible for
establishing users and groups.
account member A person who has been granted
access to the system through the use of a valid user
name within an account. Account members are
created by the account manager, who defines the
user name and assigns the appropriate capabilities
and security restrictions for the user.
account structure The method of providing
organization, security, and billing for the system. It
is used to allocate use of system resources such as
central processor time, online connect time, and file
space. The account is the principal billing entity for
the use of system resources.
alpha character A character in the range of A
through Z (or a through z).
alphanumeric character A character in the range
of A through Z, a through z, or 0 through 9.
alternate boot path The path used for booting the
system from a boot tape.
application A set of computer instructions or
programs that guide the computer through a specific
task or set of tasks. Examples of applications include
spreadsheets, word processing programs, graphics,
database management, and communications.
application program A set of computer
instructions that guides the computer through a
specific set of tasks. Applications include
spreadsheets, word processing, graphics, database
management, and data communication programs.
architecture 1) The unique set of machine
instructions, registers, and other components that
provide the conceptual basis of a computer. 2) In
networking, a structured modular network design in
which different data communications tasks are
assigned to different layers or levels.
attribute File access codes and special capabilities
that enable the computer to determine what
functions it will or will not allow a user, group, or
account to perform.
autoboot The process of automatically starting the
system.
automatic restart Main memory battery backup to
automatically restart the system after a power
failure. Temporary power line interruptions can be
tolerated with no data loss and without needing to
restart the system.